Two of my favorite YouTube video creators often put out their new work on Sundays. The folks at "minutephysics" and slingshot guru Joerg Spraeve have not disappointed this week, here are two videos from them explaining how lasers work (minute physics) and the intracacies of ballistics gelatin:
Gelatin Block of Truth:
Read more of Keith Shaw's ITworld.TV blog and follow the latest IT news at ITworld. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter and Facebook.